The main cause behind the is a corrupted user profile. Although, in some cases, a corrupt Fortnite installation or firmware of the console also caused the issue. The error code 0x8B0500B6 means that the Xbox console has failed to perform a firmware update. The user may end up having the following error message:
You need this update to use your console, but something went wrong. For help, visit xbox.com/xboxone/update/help.
Console ID: ********
Error Code: 0x8B0500B6
Before progressing to the solutions, make sure that the servers are up and running. Moreover, during the troubleshooting process, it will be better to use a wired connection (if possible) in place of a wireless connection.
To fix error code 0X8b0500B6, follow the undermentioned solutions: